Why don't the lungs collapse even after forceful expiration?

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

The function of the excretory system is to control homeostasis and

Which organism can most likely be classifild as domain bateria